Global Patent Index - EP 3305861 A4

EP 3305861 A4 20181121 - OIL-BASED INK COMPOSITION FOR WRITING INSTRUMENT, AND WRITING INSTRUMENT, MARKING PEN, AND BALLPOINT PEN CONTAINING SAME

Title (en)

OIL-BASED INK COMPOSITION FOR WRITING INSTRUMENT, AND WRITING INSTRUMENT, MARKING PEN, AND BALLPOINT PEN CONTAINING SAME

Title (de)

TINTENZUSAMMENSETZUNG AUF ÖLBASIS FÜR SCHREIBGERÄT SOWIE SCHREIBINSTRUMENT, FILZSCHREIBER UND KUGELSCHREIBER DAMIT

Title (fr)

COMPOSITION D'ENCRE À BASE D'HUILE POUR INSTRUMENT D'ÉCRITURE, ET INSTRUMENT D'ÉCRITURE, STYLO MARQUEUR, ET STYLO À BILLE LA CONTENANT

Publication

EP 3305861 A4 20181121 (EN)

Application

EP 16800038 A 20160525

Priority

  • JP 2015108118 A 20150528
  • JP 2016065400 W 20160525

Abstract (en)

[origin: EP3305861A1] [Problem] Provided is an oil-based ink composition for a writing instrument, which can form handwriting having excellent water resistance in which no bleeding occurs on written surfaces of various materials with a dye retaining color development. [Solution] An oil-based ink composition for a writing instrument, comprising a dye, an organic solvent and a phenolic compound of the following general formula (1): [wherein R is each independently hydrogen or an alkyl group having 1 to 5 carbon atoms, R 1 is any of an alkyl group having 1 to 5 carbon atoms, a halogenated alkyl group having 1 to 5 carbon atoms, a phenyl group, a hydroxyphenyl group, and an alkyl group having 1 to 5 carbon atoms substituted by a hydroxyphenyl group, and R 2 is any of a halogenated alkyl group having 1 to 5 carbon atoms, a phenyl group, a hydroxyphenyl group, and an alkyl group having 1 to 5 carbon atoms substituted by a hydroxyphenyl group].

IPC 8 full level

C09D 11/16 (2014.01); B43K 7/00 (2006.01); B43K 8/02 (2006.01); C07H 13/06 (2006.01); C09D 11/17 (2014.01); C09D 11/18 (2006.01)

CPC (source: EP US)

B43K 7/00 (2013.01 - EP US); B43K 8/02 (2013.01 - EP US); C07C 39/16 (2013.01 - US); C07H 13/06 (2013.01 - EP US); C08G 6/00 (2013.01 - US); C09D 11/16 (2013.01 - EP US); C09D 11/17 (2013.01 - EP US); C09D 11/18 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3305861 A1 20180411; EP 3305861 A4 20181121; BR 112017025352 A2 20180807; BR 112017025352 B1 20221004; CN 107849380 A 20180327; CN 107849380 B 20210518; JP 6695873 B2 20200520; JP WO2016190334 A1 20180419; SG 11201709287X A 20171228; TW 201702323 A 20170116; TW I700342 B 20200801; US 10927270 B2 20210223; US 2018127609 A1 20180510; WO 2016190334 A1 20161201

DOCDB simple family (application)

EP 16800038 A 20160525; BR 112017025352 A 20160525; CN 201680029847 A 20160525; JP 2016065400 W 20160525; JP 2017520729 A 20160525; SG 11201709287X A 20160525; TW 105116736 A 20160527; US 201615575855 A 20160525